Research and Study of Collections and Documents Surrounding Photographer Mastusaburo Yokoyama in His Family Household

横山松三郎（1838 ~ 1884）是活跃于江户末期至明治初期的摄影家，他在摄影、油画、印刷等领域研究了当时最先进的技术。他的家位于兵库县石谷，家里有大量与他的生活和工作有关的文章和文件。横山家的藏品包括湿胶版玻璃板、相册、油画、平版版画、印版、日记和笔记本。本研究的主要目的是列举和揭露横山故居迄今为止不为人知的作品和文件。另一个是通过验证横山松三郎的各种活动，并建立一个信息数据库，为进一步研究横山松三郎奠定基础。第三是保护这些具有历史价值的收藏品和文件，保护它们免受进一步的破坏和损耗。在这些观察的基础上，第四种方法是对每件物品进行数码拍照、测量和识别。

Matsusaburo Yokoyama (1838-1884), a photographer active at the end of the Edo through the beginning of the Meiji periods, studied the most advanced techniques of the time in photography, oil painting, and printing. His family home, located in Ashiya, Hyogo prefecture, holds a large number of articles and documents relevant to his life and work.The collections at the Yokoyama household range from wet-collodion glass plates, photo albums, oil paintings, lithographs, and printing plates, to diaries and notebooks. The primary goal of this study was to enumerate and disclose the heretofore unknown works and documents that the Yokoyama residence houses. Another was to establish a foundation for further study of Matsusaburo Yokoyama by verifying his various activities and creating a database of the information. A third was to conserve these historically valuable collections and documents, protecting them from further damage and dissipation. On the basis of these observations, a fourth was to digitally photograph, measure, and identify the use of each object.